20914754

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:530

約数の個数: 32

約数和(自身を含む): 37138176

約数和(自身を除く): 16223422

約数列:

[1, 2, 7, 14, 53, 71, 106, 142, 371, 397, 497, 742, 794, 994, 2779, 3763, 5558, 7526, 21041, 26341, 28187, 42082, 52682, 56374, 147287, 197309, 294574, 394618, 1493911, 2987822, 10457377, 20914754]

約数ペア:

[(1, 20914754), (2, 10457377), (7, 2987822), (14, 1493911), (53, 394618), (71, 294574), (106, 197309), (142, 147287), (371, 56374), (397, 52682), (497, 42082), (742, 28187), (794, 26341), (994, 21041), (2779, 7526), (3763, 5558)]